~ Salaspin, July 1917
via Grace’s Guide
"Replaces German aspirin"
Notes from aspirin history: Bayer, a German company, first patented Aspirin on February 27, 1900. The name Aspirin came from the ‘A” in acetyl chloride, the “spir” in spiraea ulmaria (the plant they derived the salicylic acid from) and the ‘in’ was a then familiar name ending for medicines.
Aspirin was first sold as a powder. In 1915, the first Aspirin tablets were made. Interestingly, Aspirin ® and Heroin ® were once trademarks belonging to Bayer. After Germany lost World War I, Bayer was forced to give up both trademarks as part of the Treaty of Versailles in 1919. (source)